/* ===========================
   Base & Reset
   =========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --blue: #005BBB;
  --yellow: #FFD500;
  --white: #FFFFFF;
  --light-gray: #F5F5F5;
  --dark: #1a1a1a;
  --text-muted: #666;
  --font-main: 'Georgia', serif;
  --font-sans: 'Helvetica Neue', Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

/* ===========================
   Navigation
   =========================== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 3px solid var(--yellow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 60px;
}

.nav-logo {
  font-family: var(--font-main);
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--blue);
  letter-spacing: 0.03em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--blue);
}

/* ===========================
   Page wrapper (offset for fixed nav)
   =========================== */
.page {
  padding-top: 60px;
  min-height: 100vh;
}

/* ===========================
   Splash / Hero
   =========================== */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 60px);
  text-align: center;
  padding: 3rem 1.5rem;
  background: linear-gradient(
    180deg,
    var(--blue) 0%,
    var(--blue) 50%,
    var(--yellow) 50%,
    var(--yellow) 100%
  );
}

.hero-card {
  background: var(--white);
  padding: 3.5rem 3rem;
  max-width: 600px;
  width: 100%;
  box-shadow: 0 8px 40px rgba(0,0,0,0.15);
}

.hero-card h1 {
  font-family: var(--font-main);
  font-size: 2.2rem;
  color: var(--blue);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-card .subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-stripe {
  width: 50px;
  height: 4px;
  background: var(--yellow);
  margin: 0 auto 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 2px solid var(--blue);
  color: var(--blue);
  background: transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.btn:hover {
  background: var(--blue);
  color: var(--white);
}

.btn-yellow {
  border-color: var(--yellow);
  background: var(--yellow);
  color: var(--dark);
}

.btn-yellow:hover {
  background: #e6bf00;
  border-color: #e6bf00;
  color: var(--dark);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

/* ===========================
   Section Headers
   =========================== */
.section-header {
  text-align: center;
  padding: 3.5rem 1.5rem 2rem;
}

.section-header h2 {
  font-family: var(--font-main);
  font-size: 1.8rem;
  color: var(--blue);
  margin-bottom: 0.5rem;
}

.section-header .stripe {
  width: 40px;
  height: 3px;
  background: var(--yellow);
  margin: 0.75rem auto 1rem;
}

.section-header p {
  max-width: 520px;
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ===========================
   Gallery Grid
   =========================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2rem;
  padding: 1rem 3rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.gallery-item {
  display: flex;
  flex-direction: column;
  border: 1px solid #e8e8e8;
  transition: box-shadow 0.2s;
}

.gallery-item:hover {
  box-shadow: 0 4px 20px rgba(0, 91, 187, 0.12);
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--light-gray);
}

.gallery-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #bbb;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.gallery-info {
  padding: 1rem 1.2rem;
  border-top: 2px solid var(--yellow);
}

.gallery-info h3 {
  font-family: var(--font-main);
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 0.25rem;
}

.gallery-info .medium {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.gallery-info .price {
  font-size: 0.9rem;
  font-weight: bold;
  color: var(--blue);
}

.gallery-info .sold {
  font-size: 0.9rem;
  font-weight: bold;
  color: #999;
  text-decoration: line-through;
}

/* ===========================
   Donate Section
   =========================== */
.donate-section {
  max-width: 640px;
  margin: 0 auto;
  padding: 1rem 2rem 5rem;
  text-align: center;
}

.donate-card {
  border: 1px solid #e8e8e8;
  padding: 2.5rem 2rem;
  margin-bottom: 1.5rem;
}

.donate-card h3 {
  font-family: var(--font-main);
  font-size: 1.2rem;
  color: var(--blue);
  margin-bottom: 0.75rem;
}

.donate-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.placeholder-note {
  display: inline-block;
  font-size: 0.78rem;
  color: #aaa;
  border: 1px dashed #ccc;
  padding: 0.3rem 0.75rem;
  margin-top: 0.5rem;
  letter-spacing: 0.04em;
}

/* ===========================
   About Section
   =========================== */
.about-section {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 2rem 5rem;
}

.about-section p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.2rem;
}

.about-section h3 {
  font-family: var(--font-main);
  font-size: 1.1rem;
  color: var(--blue);
  margin: 2rem 0 0.75rem;
}

/* ===========================
   Footer
   =========================== */
footer {
  background: var(--blue);
  color: rgba(255,255,255,0.7);
  text-align: center;
  font-size: 0.8rem;
  padding: 1.5rem 1rem;
  letter-spacing: 0.04em;
}

footer span {
  color: var(--yellow);
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 600px) {
  nav {
    padding: 0 1rem;
  }

  .nav-logo {
    font-size: 0.95rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .hero-card {
    padding: 2.5rem 1.5rem;
  }

  .hero-card h1 {
    font-size: 1.6rem;
  }

  .gallery-grid {
    padding: 1rem 1.5rem 3rem;
  }
}